Home / 1,953.02-2,695.58-1,289.93

Finding the Fourth Proportional to 1,953.02, 2,695.58 and 1,289.93

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Solution

The fourth proportional to 1,953.02, 2,695.58 and 1,289.93 is: 1,780.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953.02 : 2,695.58 = 1,289.93 : x
  2. Step 2: Convert to fraction form
    1,953.02/2,695.58 = 1,289.93/x
  3. Step 3: Cross multiply
    1,953.02x = 2,695.58 × 1,289.93
  4. Step 4: Simplify right side
    1,953.02x = 3,477,109.51
  5. Step 5: Solve for x
    x = 3,477,109.51/1,953.02
  6. Step 6: Final answer
    x = 1,780.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.